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Updated: Jul 20, 2025
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Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
Published on: January 29, 2018
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Should we consider the sex when estimating bone age from hand bone biometrics?
F Remy1, K Aninditya2, B Saliba-Serre2
1Aix-Marseille University, University Gustave-Eiffel, LBA, Marseille, France.
Morphologie : Bulletin De L'Association Des Anatomistes
|August 5, 2023
Summary
Sex-specific formulas improve age estimation from hand bone biometrics, particularly for individuals over 13. This study refines age assessment accuracy by incorporating sex into hand bone analysis.
Area of Science:
- Forensic Anthropology
- Radiology
- Biometrics
Background:
- Age estimation from hand bone biometrics is an emerging field.
- Existing methods show decreased precision in older children, particularly after age 13-15.
- The influence of sex on these estimations has not been fully explored.
Purpose of the Study:
- To evaluate the impact of incorporating sex on age estimation accuracy using hand bone biometrics.
- To develop and validate sex-specific age estimation formulas.
Main Methods:
- Analysis of metacarpal and proximal phalange measurements from 1003 medical images (individuals under 21).
- Sample divided into subgroups based on age 13, a key legal threshold.
- Development of sex-specific linear models and assessment of precision via residual analysis.
Main Results:
- Sex significantly influenced hand bone biometrics and age estimation from age 13 onwards.
- New sex-specific age estimation formulas were developed for the 1-21 and 13-21 age groups.
- Sex-specific formulas demonstrated slightly improved age estimation accuracy compared to global formulas.
Conclusions:
- Incorporating sex is crucial for accurate age estimation using hand bone biometrics, especially in adolescents.
- A novel tool aids in selecting the most appropriate sex-specific age estimation formula.
- This approach enhances the reliability of age assessment in forensic and clinical contexts.
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